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Issue 22, 2014
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A review of dry (CO2) reforming of methane over noble metal catalysts

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Dry (CO2) reforming of methane (DRM) is a well-studied reaction that is of both scientific and industrial importance. This reaction produces syngas that can be used to produce a wide range of products, such as higher alkanes and oxygenates by means of Fischer–Tropsch synthesis. DRM is inevitably accompanied by deactivation due to carbon deposition. DRM is also a highly endothermic reaction and requires operating temperatures of 800–1000 °C to attain high equilibrium conversion of CH4 and CO2 to H2 and CO and to minimize the thermodynamic driving force for carbon deposition. The most widely used catalysts for DRM are based on Ni. However, many of these catalysts undergo severe deactivation due to carbon deposition. Noble metals have also been studied and are typically found to be much more resistant to carbon deposition than Ni catalysts, but are generally uneconomical. Noble metals can also be used to promote the Ni catalysts in order to increase their resistance to deactivation. In order to design catalysts that minimize deactivation, it is necessary to understand the elementary steps involved in the activation and conversion of CH4 and CO2. This review will cover DRM literature for catalysts based on Rh, Ru, Pt, and Pd metals. This includes the effect of these noble metals on the kinetics, mechanism and deactivation of these catalysts.

Graphical abstract: A review of dry (CO2) reforming of methane over noble metal catalysts

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Publication details

The article was received on 02 Nov 2013 and first published on 07 Feb 2014

Article type: Review Article
DOI: 10.1039/C3CS60395D
Chem. Soc. Rev., 2014,43, 7813-7837

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    A review of dry (CO2) reforming of methane over noble metal catalysts

    D. Pakhare and J. Spivey, Chem. Soc. Rev., 2014, 43, 7813
    DOI: 10.1039/C3CS60395D

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